Enhancing standard finite element codes with POD for reduced order thermal analysis: Application to electron beam melting of pure tungsten
This paper describes a numerical scheme that implements reduced order modeling of transient heat transfer problems by enhancing a standard fifinite element code, ABAQUS, and integrating it with proper orthogonal decomposition (POD). The capability of output and manipulation of matrices, the user subroutine for moving heat source and easy enforcement of boundary conditions, and the powerfulness of pre- and post-processing in the commercial software package are leveraged, resulting in a standard and accessible tool for POD analysis.